# PHMSA and NAPSR Joint Petition to the Gas Piping Technology Committee (GPTC) (2006)

- **operation:** document
- **citation:** PHMSA Guidance, PHMSA and NAPSR Joint Petition to the Gas Piping Technology Committee (GPTC) (2006)
- **title:** PHMSA and NAPSR Joint Petition to the Gas Piping Technology Committee (GPTC) (2006)
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** PHMSA and NAPSR Joint Petition to the Gas Piping Technology Committee (GPTC) (2006) Document phmsanapsrlettertogptc.pdf (97.39 KB) PHMSA and NAPSR Joint Petition to the Gas Piping Technology Committee (GPTC) (2006) Effective Date: Sunday, May 1, 2005
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**body:**

PHMSA and NAPSR Joint Petition to the Gas Piping Technology Committee (GPTC) (2006)

Document

 phmsanapsrlettertogptc.pdf (97.39 KB)

        PHMSA and NAPSR Joint Petition to the Gas Piping Technology Committee (GPTC) (2006)

          Effective Date: Sunday, May 1, 2005

<<<PAGE 1>>>

U.S. Department 400 Seventh St. S.W.
of Transportation Washington, D.C. 20590
Pipeline and
Hazardous Materials Safety
Administration
Mr. John Frantz
Manager Gas Engineering
PECO Energy
2301 Market Street
Philadelphia, PA 19101-0000
Dear Mr. Frantz,
The Department of Transportation's Pipeline and Hazardous Materials Safety Administration
(PHMSA) and the National Association of Pipeline Safety Representatives (NAPSR) requests
that the Gas Piping Technology Committee develop guidance that will help assure the
integrity of gas distribution pipelines.
PHMSA promulgated regulations requiring integrity management (IM) programs for
hazardous liquid pipelines (in 2000) and gas transmission pipelines (in 2003). Operators of
these types of pipelines are required to implement programs that require them to identify the
threats to their pipelines, analyze the risks they produce, and take actions as needed to
mitigate these risks. These regulations require that pipeline operators, as part of their IM
programs, conduct periodic inspections of the condition of their pipelines to identify and
remediate conditions that could threaten pipeline integrity.
Distribution pipelines are not currently subject to IM regulations. Design differences between
distribution pipelines and the pipelines now covered by IM regulations preclude use of the
inspection techniques required by these regulations. At the same time, other elements of the
IM regulations could be applied to distribution pipelines. The DOT Inspector General, testifying
before Congress in 2004, recommended that IM programs be required of distribution pipeline
operators. The report of the FY 2005 Conference Committee on Appropriations required DOT
to report to the Congress on its plans for doing so.
As a result of this Congressional request, PHMSA worked with a number of stakeholder
groups to evaluate IM requirements that could be applied to distribution pipelines in a
practical manner. This program was described in DOT's report to Congressl as the first
phase of a multi-phased effort. The Phase 1 program has now been completed, and has
Office of Pipeline Safety, Pipeline and Hazardous Materials Safety Administration, Department of
Transportation, "Assuring the Integrity of Gas Distribution Pipeline Systems: A Report to the Congress," May
2005.

<<<PAGE 2>>>

reached conclusions about the nature of IM programs that could be required of distribution
pipeline operators.
The Phase 1 program concluded that it would be most appropriate to require IM programs of
distribution pipeline operators through a high-level regulation that permits significant
flexibility. Such a structure will best accommodate the wide diversity among distribution
pipeline operators. Companion guidance is needed to enable operators and the public to
understand better the actions that must be taken to implement the regulation, preferably
providing options suitable for different circumstances faced by different operators. It would be
most useful if this guidance were developed in parallel with the regulation, so that public
comment on a proposed rule could be informed by the additional information that would be
provided by the guidance. It is for this reason that PHMSA and NAPSR are requesting that
GPTC undertake an effort to develop the needed guidance. We hope you share our sense of
urgency for developing guidance to support implementation of final rule anticipated by late
calendar year 2007.
The Phase 1 program, as described in the Phase 1 report, concluded that a high-level flexible
regulation for distribution IM should include seven elements:
1.
2.
3.
4.
5.
6.
7.
development of a written IM plan
assuring an understanding of an operator's infrastructure
identifying applicable threats, both current and potential
analyzing risks
implementing appropriate measures to address risks
measuring performance and adjusting the IM program as needed
reporting selected results to regulatory authorities on a periodic basis.
Guidance is needed for implementing these elements. In particular, guidance is needed to
address:
•
•
•
•
•
•
•
Information that an operator should gather through its routine activities to improve
the understanding of its distribution system infrastructure
How best to assemble detailed information on pipe characteristics (including material,
manufacturer, batch, etc.) into an operator's understanding of its system to support
current and future risk management activities
Threat evaluation processes and data needed to support this evaluation
Options for evaluating the relative importance of threats
How risk analysis can be performed, encompassing situations from small, simple
distribution systems to those that are large and complicated, and what use should be
made of the results of these analyses
Choices for decision processes and criteria for selecting prevention, detection and
mitigation measures
Choices for measuring safety program effectiveness and describing the situations
under which the measures would be meaningful

<<<PAGE 3>>>

• Choices an operator might make in evaluating the overall effectiveness of its program
(e.g., how to determine it is being implemented as described; how to determine
whether it is producing improvements)
In addition, specific guidance is needed to address:
•
•
•
Criteria for determining whether it is feasible to install an excess flow valve (EFV) in
a gas service line (i.e., would a valve work reliably if installed?)
Risk factors, and a risk evaluation approach, for determining when it is appropriate to
install an EFV in a gas service line where installation is feasible (i.e., should a valve be
installed?)
Implementing a comprehensive leak management program, which is fundamental to
successful management of distribution risk, and thus is a vital risk control practice.
At a minimum, guidance is needed to implement the LEAKS program described in
the Phase 1 report for
o
determining how local conditions and system knowledge should affect the
frequency and type of leak surveys
o
o
methods/criteria for evaluating the severity of leaks and need for action
records that should be maintained to permit trending and identification of
underlying problems
o
perfoiniance metrics and the types of analyses in which they should be
considered
The wide diversity among distribution pipeline operators will likely make it difficult to
develop the necessary guidance. In particular, the guidance must be useful to operators of
different size and with differing degrees of available resources and expertise. Many operators
of distribution pipeline systems are small companies or municipal agencies, many without
resources to develop custom IM plans or implementing procedures. These operators need
detailed guidance, but guidance that includes enough options so that they will fit their
individual circumstances. PHMSA and NAPSR considers that it would be useful for GPTC to
establish a separate committee for this effort, or to augment its existing committee in a manner
that will increase the participation by persons with expertise in the operation of small
distribution pipeline systems, as well as by federal and state safety regulators. PHMSA and
NAPSR look forward to discussions with GPTC concerning how the involvement of
appropriate expertise can be assured.
ASME/ANSI B31.8S, Supplement to B31.8 on Managing System Integrity of Gas Pipelines,
provides guidance for implementing the IM regulation for gas transmission pipelines. The
portions of this document dealing with inspection/assessment will have no applicability to
distribution pipeline integrity management, but the portions addressing other elements of the gas
transmission IM regulation could provide a useful reference for developing applicable
guidance for distribution pipelines.

<<<PAGE 4>>>

PHMSA and NAPSR would appreciate the opportunity to meet with GPTC to discuss further
plans for the expeditious development of the guidance necessary to implement IM requirements
for gas distribution pipelines.
Please address any correspondence regarding this request to Mike Israni, PHMSA, and to
Don Martin, NAPSR.
Sincerely,
Stacey Gerard Don Martin
Acting Assistant Administrator/Chief Safety Officer NAPSR National Chair
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